Seaming-machine.



P. W. T. NESSLER. SEAMING MAGHINE. y APPLICATION IILEDDEU. 17, 1901.

997,858.' y Patented 1350.29, 1908.l

2 SHEETS-SHEET a.

254 "I N, i 28 @10F-Q" 24 uNrrnD s'rATnsv rATENT orricn.

FRIDRIOH WILHELM THEODOR NESSLER, OF STAVANGER, NORWAY, ASSIGNOR TOFREDRIK r WATTNE, OF STAVANGER, NORWAY.

sEAMrNG-MACHINE. i

atented. Dec. 29, 1908.

To all whom it may concern:

Be itknown that I, FRIDRIOH WILHELM TI-iEoDoR NEssLER, a subject of theKing of Norway, residing at Stavanger, Norway, have invented certain newand useful Improvements in Seaming-Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters or figures of reference marked thereon, which form a partof this specification.

My invention relates to improvements in seaming machines of the kind inwhich the seaming tools are controlled bycams, the configuration ofwhich corresponds to that of the can.

My invention partly consists in a device by which the cans to be seamedcan be placed in position and firmly clamped in an entirely automaticmanner, the ready-seamed cans being also automatically released, andfurther in various arrangement-s and combinations ofthe several parts ofthe machine, and particularly in the arrangement of the controlling camsand controlling rollers, and also in a specail constructional form ofthe holders of the seaming rollers, for the purpose of rendering thesame more easily adjustable.

My invention is illustrated in the attached drawings, Figure 1' being aside elevation, Fig. 2 a front elevation, and Fig. 3 a ground plan ofthe complete machine. Fig. 4 is a vertical sectionon a larger scalethrough its upper portion, showing the arrangement of the controllingparts; Fig. 5 shows the same part of the machine seen from the'left inFig.v

4,' and Fig. 6 is a detail view.

1 is the frame of the machine. A sleeve 2 is provided on the frame for arod 3 capable of being reciprocated vertically in said sleeve and havingat its upper end'a head 4 on which is placed the can which is to beseamed. Secured to said rod 3, near the lower end of the same, is a ring5 provided with a latch 6 engaging with a projection 7 on a clutch 8loosely mounted on the rod 3, said clutch having pivotally secured to ita bar 9. T he parts being clutched together in the aforesaid manner, therod 3 will be reciprocated vertically, when the bars `9, 10 which arejointed to form a knee are actuated for the purpose.

The objectof my invention is now to provide an arrangement comprisingfour principal parts, the seaming device, the device for placing the canin position, in the machine the clamping device and the releasingmechanism, which are all actuated from a common driving shaft throughsuitable intermediary means.

Into the upper portion of the frame a tubular stem 15 (Fig. 4) isscrewed, having its axis in a line with that of the rod 3, and servingas shaft for a pulley 16. In this pulley stationary sleeves 17 (big. 5)are provided to receive shafts 18 and 19 on the ends of which are keyedcurved arms 20, 21 and 22, 23-

similar way having controlling rol ers 26, 27

respectively; on arms 21 and 23 are also secured seaming'rollers 28 and29. Controlling rollers 24, 25, 26, 27 have each a bevel face 30engaging corresponding bevel faces 31 of two nonrotating controllingdisks 32 33 mounted to slide on the tubular shaft 15 in the longitudinaldirection of the same. Each of the controlling rollers 25, 27 has,moreover, another bevel face 34, inclined in the opposite direction tothat of face 30. In the tubular shaft 15 is slidingly mounted a rod 35,projecting parts of which 36, 37 extend through slots 38 and are ri idlyconnected to rings 39 and 40 respective y ,on these rings saidcontrolling disks 32, 33 are screwed. In the disk 32 guide bars `41 aremounted slidingly, extending through plates 42, 43, which are screwed onshaft 15 above pulley 16. Controlling disk 33 slides up and down onguide bars 44 having their upper ends secured to a collar 45 on shaft15, and their lower ends to a head 46, also mounted on shaft 15. Thepulley 16 is pivotally mounted on shaft 15 between said collar 45 on oneside and nut and counternut 47 and 48 on the other.

The controlling disks 32, 33 are raised or lowered by rod 35, disposedwithin the tubular shaft 15, the rod being connected to the controllingdisks by the projecting parts 36, 37 and the rings 39, 40. The rod 35is, at its upper end hinged to one end of a lever 49 attached to a shaftcarried by the frame at 50; the other end of the lever 49 is connectedto a rod 54 mounted to slide up and down in a sleeve 53 secured to thetrame which rod is normally forced upward by a spring 55.

A stem 57 provided with a belt-guide 56 is slidingly mounted in brackets58 at the lower portion of the frame, which stem is connected by a jointto one end oi a lever 61 which is pivoted at a ixed point 6() and havingat its opposite end a foot-plate 62.

F rom the pulley 63 on the main shaft 64 a driving belt is passed overguide wheels 65 to pulley 16. Cams 66 and 67 are also actuated from themain shaft 64, by means of gears 68, which cams serve as a controllingarrangement for the devices for placing in position, clamping andreleasing the can as well as for the rod 54 actuating the controllingdisks of the seaming rollers.

The seaming rollers are connected to arms 21, 23 by holders 71 in whicha i'ork 94, carrying the rollers, is pivotally and slidingly mounted. When this l'ork has been brought into its proper position in the holder71, it is tightly secured to the same by any suitable means including ascrew and nut 95, 96.

The device lor placing the can in position to be operated upon consistsof a catch 73 arranged to be moved by suitable guiding means, across astationary support or eed table 72 which catch is moved inward by rod74, lever 75, shaft 76 and finger 77 the latter being actuated by aprojection 78 on the controlling cam 66 journaled in the frame of themachine and being rotated from the main shaft 64 through the gearing 68.The catch 73 is returned to its initial position by a spring 79 actingon the lever 75.

The automatic clamping device consists oi' a link 8() extending from theconnecting pin of the oint levers 9 and 10 arranged to move the couplingbox 8 along the rod 3, the opposite end of said link 8O being connectedto a lever 81 mounted on the shaft 82 which has also two other leverssecured to it, one of the latter, 83, carrying a weight 34, while theother, 85, may be actuated by a projection 86 on the cam 66.

The releasing mechanism consists of a shaft 87 mounted in the frame andhaving two levers 88, 89 one of which, 88, actuates the free end 90 ofthe latch 6 pivotally mounted on the rod 3, which latch is adapted toengage the projection 7 on the coupling box 8, while the other lever,39, is actuated by a projection 91 on the cam 66.

The rod 3 carries at its upper end a head 4 on which the can is placedby the device described above, while the rod 3 occupies its lowerposition, whereupon said can is raised into position to be operated uponby the seammg rollers. The next can pushes the finished one ott the head4 causing the latter to slide down a chute 92 shown in dotted lines inFig. 2.

The cam 67 actuates a roller 93 mounted on the rod 54, which isconnected with the controlling mechanism for the seainin g rolle rs.

The machine operates in the, following manner: Assuming the severalparts ol" the machine to occupy the positions as shown in Fig. 1 inwhich rod 3 is raised and the can is being operated upon by theyseaniing rollers, the process of operation is as follows: As the cams 66and 67 are being rotated in clockwise direction, the highest point etthe cam 67 actuating the roller 93 will pass the rod 54, and the seamingrollers will be swung out from the ready seamed can. Now, the projection91 on the cani 66 runs against the. lever S9 thereby rotating the shalitS7 and turning the lever SS upward; the latter will then torce the treeend 9() ol.' the latch 6 inward, so as to disengage the latch troni theproj eetion 7 on the coupling box 3. The rod 3 with the latch 6 willthen lall downward, until the underside of the head 4 engages the sleeve2, which brings it exactly in alinelnent with the support or leed table7 2. ln the mean time the cam 66 has rotated so lar as to make theprojection 7S bear on the linger 77, thereby rotating the shalt 76,turning the lever 75 outward and thus causing the rod 74 to pull thecatch 73 inward, so that the latter will push a can, placed in front ol"it on the support, on to the head plate 4 pushing by the same action theready-sealnml can oil said head plate. Now, the projection S6 on the cam66 runs against the lever S5 thereby rotating the sha'l't S2, with theresult that the weight S4 is raised and the lever 81 turned outward, thelatter thereby through the link S0 actuating the member connecting thelevers 9 and 1() so as to cause the coupling box S to be pulled down,until its projection 7 engages the latch 6 on the rod 3. When now thelever S5 has again been released from its catch with the proj ection 86,the shaft S2 will be turned in the ops posite direction by the weightdepending from the lever 83, and consequently the lever 81 will be swunginward and the joint 9, 1() straightened so much as to cause the rod 3with the can to be raised up to thel seaniing tools which are then bythe cani 66 suecessively moved towards the can; thereupon theready-scamod can is released to be replaced by a fresh unseamed canwhich has in the meanwhile been placed on the support 72.

The aboz'e described, automatically operating deiees for placing the canin position in the machine, for clamping, and tor releasing the same maybe employed in old seaming machines as well as in new ones, the

structure oi the parts having, of course, to

be modified to meet the case in question.

Claims. 1. In a ean-seaming machine, the combi nation with rotaryseaming tools, of a reciprocatory support, means for raising the supportto clamp a can, a device for detachably connecting the support to theraising means, a constantly running rotary member, a tappet thereon foroperating said device to release said support from the raising means andpermit it to drop after the seaming operation, a feeding device to feeda fresh can onto the support after it has been dropped, another tappeton said member to actuate said feeding device, and a third tappet onsaid member to lower said raising means into position to be againconnected to said support.

2. In a can-seaming machine, the combination with rotary seaming tools,of means for clamping and holding a can during the seaming operation,said means including a reciprocatory support, means for raising thesupport to clamp a can, means for throwing the seaming tools intooperation, a dew-ice for detachably connecting the support to theraising means, feeding means to place a fresh can onto the support whenin its lowest position, means for causing the connecting device torelease said support from said raising means, and a single rotary memberperiodically and successively operating said can feeding means, saidconnecting device and said raising means.

' 3. In a can-seaming machine, the combination with the seaming-tools,the verticallymo'able can-support, and a feeding-device to feed cansonto said support while it is in its lowest position, of means to raisesaid support, means to detachably connect the latter to said raisingmeans, and a constantly-running cam member which successively actuatessaid feeding-device, permits said raising means to act, disconnects saidsupport from said connecting means, and lowers said raising means.

In testimony that I claim the foregoing as my in'rention, I have signedmy name in presence of two subscribing Witnesses.

FRIDRICH WILHELM THEODOR NESSLER.

Witnesses:

J. N ORNI, OTTO SENEVAD.

